Extension-table.



PATENTED MIX-11.24; 1908.

F. L. & L. B. RIVARD.

EXTENSION TABLE.

APPLIOATION FILED JAN,28,'190'1.

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No. 882,799. PATBNTED MAR. 24, 1908.

F. L. & B. RIVARD.

EXTENSION TABLE. APPLICATION IILYED umza, 190v.

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No. 882,799. PATENTED MAR. 24, 1908. F. L. :& L. B. RIVARD.

EXTENSION TABLE. APPLIOATIONUIILBD JAN.2B,1907.

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ATTORNEYJ UNITED STATES PATIENT OFFICE.

FREDERICK L. RIVARD AND LAWRENCE B. RIVARD, OF MARINE CITY, MICHIGAN.

EXTENSION-TABLE.

Specification of Letters Patent.

Patented March 24, 1908.

Application filed January 28, 1907. Serial No. 354,514.

To all whom it may concern:

Be it known that we, FnEnERIoK L. RI- VARD and LAWRENCE B. RIVARD, residing at Marine City, in the county of St. Clair and State of Michigan, have invented certain new and useful Improvements in Extension-Tables, of which the following is a specification.

Our invention comprehends an improved construction of extension table in which the supplemental or extension top members are stored beneath the central or fixedly held top portion, and it generally comprehends an improved means whereby the extensible top or leaf is automatically raised in a plane with the fixedly held top section or lowered in a plane below the said top section, as the said top section is pulled out or shoved back and is firmly held to either position when it is set to close against, or slide under the fixed top section.

In its more complete nature, our invention comprehends a supplemental top section and a slide frame upon which it is loosely mounted, the said frame and the supplemental top section having connections whereby the said top section and the frame travel together during a portion of the movement of the slide frame inwardly or outwardly, and means co- 0 crating with the slide frame, the main tab e section and the supplemental top section, for automatically lifting the latter section on the final outer movement of the slide frame and for automatically lowering the said supplemental top section on the beginning of the outward pull on the frame when the supplemental top section is positioned against the central'fixed top ortion.

In its more su ordinate features, our invention consists in certain details of construction and novel arrangement of parts, all of which will be first described in detail, and then be specifically pointed out in the appended claims, reference being had to the accompanying drawings, in which z- Figure 1, is a perspective view of our improved table, the extensions being closed.

Fig. 2, is an inverted perspective view of the table top, the slides and extensible sections, showing one of the latter parts extended. Fig. 3, is a longitudinal section of the table,

the parts being at the closed or first position.

Fig. 4., is a similar view of one end of the table showing the extensions drawn out, the sup plemental top section being at the limit of its outward adjustment, the several parts being at the second position. Fig. 5, is a similar view, the slide frame being at the limit of its' outward movement, the supplemental section slightly elevated, and the parts being in the third position. Fig. 6, is a similar view, the slide frame being shown partly pushed back, the supplemental section as abutting the supplemental top member dropped, this being the first position of the parts for cl0sing the extensions. Fig. 9, is a similar view showing the second position of the parts for closing them under the main table top. Fig.

Fig. 7, is a view similar 10, is a transverse section of the table on the' 1 line 9-9 of Fig. 3. Fig. 11, is a detail perspective view of one of the slide frame bars, the supplemental top leaf casting and the leaf cams that cooperate therewith.

In the practical application of our invention, the central or fixedly held table section a has the usual longitudinal pendent sides aa/, and in the present case it also has a pair of inner longitudinal cleats a -a and a pair of outer longitudinal pendent cleats" 22 which form the slide-way for the slides C-O of the extension members, supporting cross members cc being also provided, as clearly shown in Fig. 2.

On the outer end, each slide member has a rest plate or cleat F which is provided with a number, preferably two, of concaved seats or depressions f and adjacent the said seats the rest member has lateral studs II, the purposes of which will be presently ex lained.

DD designates the supplementa or extension table top section, each of which has a pair of pendent members E, formed with convexed lugs c-e, which lugs are so positioned that they will ride upon the cleats F and engage with the concaved seats f Itshould be stated that the table sections D rest loosely upon the members F-F, and by reason of the lugs ee engaging the seats fthe said sections D become interlocked with such members F and move out with the slides CC, and this simultaneous moveslidably connected to slotted link bars B that are pivotally connected at their inner ends to pendent cleats on the under side of the central table section as at I), while their front ends engage with the members E, the latter having lateral lugs e that slide in the slots 1) of the bars B, as clearly shown.

By reason of connecting the table sections D to the bars B, as shown, it is apparent that when pulling out the slides C, the outward movement of the sections D is stopped by reason of the lugs e reaching the ends of the slots 1) and that the further or final pull on the slides causes the table sections D to rise up with their convexed lugs out of the seats f in members E, to the positions shown in Figs. 4 and 5, the upward movement of the said sections being provided for by the pivotal connection of the bars B. To maintain the sections D in a plane with the central or fixed table top after the final outward movement of the slides, a pair of leaf supporting members G are provided that are pivotally mounted on studs g-g adjacent the seats F, and the said supporting members have their lower ends Weighted to overbalance the upper ends whereby to cause the said upper ends to follow the supplemental top on its upward movement until they reach the vertical position shown in Fig. 5 when further swing thereof in the direction stated is prevented by reason of the weighted ends of the said members engaging with the lugs II on the slide frame members F.

When positioned, as shown in Fig, 5, the table section D is in a horizontal plane with the fixed or central table sections A and it is maintained at such position by the pivoted supports G which, by reason of their lower ends being weighted, automatically assume a vertical position, and since the said members move with the slide frame C and are freely slidable under the section D, it follows that the slides C-C can now be moved backward in the direction of the arrow, see Fig. 6, and thereby bring the parts to a closed position as shown in Fig. 1, by reason of which it will also be observed that the lugs e-e now rest upon the upper or straight face of the mem-. bers FF secured upon the slide members CC and which now sustain the Weight of the table section D.

To close the table it is only necessary to pull the slides C-C outward a short distance, sufficient to bring the seats f under the lugs e, see Fig. 8, the bars B preventing the table member D from moving outward with the slides 0, except sufficient to move away from the table A, the pivoted supports G are now overbalanced and forced outward by the weight of the table section D, which, as the slides C continue in their outward movement, drop to the position shown in Fig. 9 in a lane below the table section A with the ugs e-e fully resting within the seats f. It is manifest that when thus positioned (as in Fig. 9) the table section D can be readily slid back with the slide members C and the main table section A to the position shown in Fig. 3.

The adjusting of the table section D up or down is automatic and always positive and under no manipulation is it necessary to handle the said table section D, the several parts being so correlated that under all adjustments the table D is loosely supported on the slides C, whereby to permit of its automatic rise or fall without any handling, by simply pulling "the slides C inwardly or out- Wardly.

Having thus described our invention, what We claim as new and desire to secure by Letters Patent, is:

1. In combination with the stationary table sections, and the extensible frame slidable thereon; of a supplemental top sec:

tion loosely mounted on the slide frame and movable with it during a part of its outward pull, the said slide frame and the top section having cooperating means for automatically raising the said supplemental top section in line with the main table section as the slide frame is pulled out, and another automatic means for sustaining said top section at its elevated osition as the slide frame is pushed back unc er it, as set forthf 2. The combination with the main table section and the extensible frame slidably mounted thereon; of a supplemental top section, means on the said section for engaging the main table section that limit the outward adjustment of the supplemental top section, the said supplemental top section being loosely mounted on the extensible frame, cooperating means on the said frame and the top section for interlocking the said members to move together until the outward movement of the top section is arrested, and

for raising the said top section asthe extensible frame completes its outward thrust and automatic means on the extensible frame for sustaining the supplemental top at its elevated position as the slide frame is pulled back.

8. The combination with the main table section; of a slide frame, the supplemental table top loosely mounted on and movable with the slide frame, a stop on the main frame for limiting the outward movement of the supplemental top as it is pulled out with the slide frame and means controlled by the further movement of the slide frame for lifting the supplemental top after its outward movement is arrested.

4. The combination with the main table section; of a slide frame, a supplemental table section loosely supported thereon, means for interlocking the said supplemental section, at times, with the slide frame Whereby saidsection and the frame will move outwardly together, said means including devices for lifting the said supplemental frame on the final outward movement of the slide frame and another means for sustaining the said frame during the first portion of the inthrust of the slide frame, as set forth.

5. The combination with the main table, the supplemental top slidable on the main table, said supplemental top having pendent convexed lugs; of the slide members having concaved seats, counterbalanced members pivoted to the slides mounted on the frame to swing with their upper ends above the concaved seats for engaging the under side of the supplemental top for the purposes described.

6. In an extension table, an extension slide frame, a supplemental table section loosely supported on said slide frame, the

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opposing contacting faces of the frame and the supplemental table section having interlocking ortions whereby they will move outward y together, means for arresting the outward movement of the supplemental table section, said interlocking portions being so arranged whereby a pull on the slide frame after the movement of said table section is arrested will elevate said section and means on the slide frame for supporting the table section in its elevated position substantially as described.

FREDERICK L. RIVARD. LAWRENCE B. RIVARD.

Witnesses:

HALE P. SAPH, RosooE R. SAPH. 

